| Acronym | Meaning |
| AACR | American Association For Cancer Research |
| DPUMPN | Double-annihilation Procedure Unrestricted Moeller-Plesset Nth-order |
| PWO | Plane Wave Orbital |
| CSEM | Coherent Self-energy Method |
| WSIA | Water Supply Improvement Association |
| SCE | Semiclassical Exchange Approximation |
| LIGS | Laser-induced Grating Spectroscopy |
| EMOA | Extended Maximum Overlap Approximation |
| HKS | Hartree-Kohn-Sham (quantum Theory) |
| ILS | Instrumental Line Shape |